Mark Schwarzer felt that Friday's come-from-behind 2-1 win over Thailand was Australia's worst performance in a long time. Holger Osieck's Socceroos conceded in the 15th minute of their opening 2014 World Cup qualifier in Brisbane before Josh Kennedy and Alex Brosque saved their blushes with goals in the 58th and 86th minutes respectively.

Fulham goalkeeper Schwarzer admitted that the result, although a winning one, felt like a loss and was very critical of the showing from the world's 22nd ranked team who struggled to get past 120th ranked Thais.

"It felt like a loss to be perfectly honest. At the end of the day the only thing I can say is we got three points on the board," Schwarzer told Fox Sports.

"It was probably one of our worst performances we've had for a very long, long time. There's no excuses. It wasn't good enough today and we all know it."

He added: "We were all over the place. We didn't have any good shape. We were chasing rather than playing with our head.

"The boss had strong words to everyone at half-time, but the positive is we got the three points. That's all."

As for Tuesday's clash with Saudi Arabia in Dammam, Schwarzer insists that the Socceroos will need to improve sharply or face a disappointment in their second outing.

"We definitely can't play like we did today. We need to regain our shape and make sure we all do our jobs which we're supposed to do," he said.